That particular one is only good for small batteries, up to 60AH for use on motorcycles, lawn tractors etc.
I have purchased many battery maintainers thru the years (I own and use eight of them) from cheap HF brands to the Cadillac, Battery Tender and you get what you pay for. Having a winter home in SC and my primary in NY, I maintain two sets of yard equipment and toys. The HF brand has short cords (needed to use extension cords) and I came back six months later to 2 out of 3 dead batteries, the first time I used them. I replaced them with Battery Tenders five years ago. They have really long cords (no extension cords) and I have had no issues since. Needing three more, I bought three what I thought were Battery Tenders, but were clones from eBay three years ago, they looked just like them, advertised them as Battery Tenders but were 1/2 the price (should have known better). When I received them, the cords were short but it was too late to get new ones as I was leaving to SC in a couple of days. Fortunately, they are still working, with extension cords but working.
Just my two cents!
